67040512 has 144 divisors (see below), whose sum is σ = 176601600. Its totient is φ = 24606720.

The previous prime is 67040509. The next prime is 67040521. The reversal of 67040512 is 21504076.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374439 + ... + 374617.

It is an arithmetic number, because the mean of its divisors is an integer number (1226400).

Almost surely, 2^67040512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67040512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88300800).

67040512 is an abundant number, since it is smaller than the sum of its proper divisors (109561088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67040512 is a wasteful number, since it uses less digits than its factorization.

67040512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 67040512 is about 8187.8270621698. The cubic root of 67040512 is about 406.2366549620.

Adding to 67040512 its reverse (21504076), we get a palindrome (88544588).

The spelling of 67040512 in words is "sixty-seven million, forty thousand, five hundred twelve".